JPH08242082A - Attaching structure of strap metal fittings in small electronic device - Google Patents

Abstract

PURPOSE: To prevent static electricity from entering a device case and prevent generation of noise caused by strap metal fittings without increasing the number of parts. CONSTITUTION: Strap metal fittings containing part 22 for containing strap metal fittings 10 which are attached rotatively by a pin member 12 is provided to appear freely to a side surface of a device case 1 in an area near a sound introduction member 23 which introduces sound generated from a speaker 8 to an outside. An elastic insulating member 24 such as rubber which is arranged inside the part 22 and encloses the part 10 contained therein is integrally formed with the sound introduction member 23. Therefore, it is possible to prevent static electricity of the part 10 from entering the device case 1 by the elastic member 24 without increasing the number of parts and to prevent generation of noise since the part 10 comes into contact with the elastic member 24 even if the part 10 rotates freely around the pin member 12 when the device is carried.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strap metal fitting mounting structure for a small electronic device.

[0002]

2. Description of the Related Art Small electronic devices include pagers, pocket radios, and cassette recorders. In this type of small electronic device, a strap such as a chain having a clip at its tip is attached in order to carry the device well or prevent the device from being lost. Such a strap attachment structure will be described by taking a pager as an example. Here, the pager will be described first. The pager receives the call signal from the base station,
This is to notify the wearer of a call by sound or vibration, and is provided with a thin box-shaped device case. As shown in FIG. 5, the device case 1 is composed of an upper case 2 and a lower case 3, and has a structure in which the cases 2 and 3 are joined together with the outer peripheral surfaces of the cases 2 and 3 abutting against each other. A display element 4 such as a liquid crystal display panel for displaying a received message, a name plate (not shown), etc. are provided on the surface of the device case 1, and a main switch 5 and a sound emitting section 6 are provided on one side surface. ing. In addition, as shown in FIG. 6, a circuit board 7 and a vibrating element (not shown) that vibrates at the time of receiving a calling signal and notifies that there is a calling are provided in the device case 1. A speaker 8 is attached to the circuit board 7 so as to correspond to the sound emitting section 6. By the way, as shown in FIG. 6, a strap metal fitting housing portion 11 for housing the strap metal fitting 10 is provided at a corner of the device case 1 near the sound emitting portion 6. A pin member 12 to which the strap fitting 10 is rotatably attached is provided at a portion of the strap fitting housing 11 that is offset to one side surface. Therefore, the strap fitting 10 is retractably housed in the strap fitting housing 11 by rotating around the pin member 12, and is provided at the tip of the strap 13 such as a chain so as to project to the outside. The clip 14 is attached to the structure.

[0003]

However, in such a mounting structure of the strap fitting 10, the device case 1
Is composed of the upper case 2 and the lower case 3, and has a structure in which the outer peripheral portions of the respective cases 2 and 3 are butted against each other and the respective cases 2 and 3 are joined to each other. The outer peripheral portions may not come into close contact with each other, and a gap S may be formed as shown in FIG. 5, and static electricity may enter the device case 1 through the strap metal fitting 10 and the static electricity may cause a circuit in the device case 1 to come into contact. There is a problem that the electronic components mounted on the board 7 may be destroyed. In addition, in the mounting structure of the strap metal fitting 10, the strap metal fitting 10 rotatably mounted on the pin member 12 in the strap metal fitting storage portion 11 freely rotates about the pin member 12, so that the strap metal fitting is portable. There is an inconvenience that the strap 10 hits the inner surface of the strap fitting housing 11 and produces an abnormal noise. Particularly, in the pager, when the reception of the calling signal, which is one of the functions, is notified by the vibration of the vibrating element, there is a problem that the strap metal fitting 10 generates a chattering sound due to the vibration. An object of the present invention is to provide a strap metal fitting mounting structure in a small electronic device capable of reliably preventing static electricity from entering the equipment case and generating noise due to the strap metal fitting without increasing the number of parts. is there.

[0004]

In order to achieve the above object, the present invention has a device case having a speaker inside and a sound guide member for guiding the sound generated from the speaker to the outside. In a small electronic device in which a strap metal fitting housing is provided on an outer side surface, a strap metal fitting is rotatably attached by a pin member in the strap metal fitting housing, and the strap metal fitting is retractably housed in the strap metal fitting housing. In the strap metal fitting mounting structure, a strap metal fitting housing is provided on the outer surface of the device case near the sound guide member, and the sound guiding member is provided with an insulating property that surrounds the strap metal fitting that is placed in and stored in the strap metal fitting storage portion. It is characterized in that the elastic member has is integrally formed.

[0005]

According to the present invention, since the elastic member having an insulating property is arranged in the strap metal fitting housing portion on the outer surface of the equipment case, the elastic member surrounding the strap metal fitting housed therein is disposed.
Even if the strap bracket is charged with static electricity, the elastic member can prevent static electricity from entering the device case, and the elastic member is formed so as to surround the strap bracket stored in the strap bracket storage section. Therefore, even if the strap metal fitting freely rotates around the pin member while being carried, the strap metal fitting does not directly contact the device case and does not generate an abnormal noise because it contacts the elastic member. Moreover, since the elastic member is formed integrally with the sound guide member that guides the sound generated from the speaker to the outside, it is possible to prevent an increase in the number of parts.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the strap fitting mounting structure of the present invention will be described below with reference to FIGS.
The same parts as those of the conventional example shown in FIGS. 5 and 6 are designated by the same reference numerals, and the description thereof will be omitted. As shown in FIG. 1, a circuit board 7 is provided in the device case 1 of the pager. A speaker 8 is provided at a predetermined position on the circuit board 7, and an electrode spring 20 of the battery is electrically connected to the speaker 8. On the other hand, a sound emitting portion 21 is provided on the side surface of the device case 1 substantially corresponding to the speaker 8, and a strap metal fitting housing portion 22 for housing the strap metal fitting 10 is provided on the side surface near the sound emitting portion 21. It is provided. Sound emission part 21 in the strap metal fitting storage part 22
On the side, a pin member 12 is provided so as to straddle the upper case 2 and the lower case 3, and a strap metal fitting 10 is rotatably attached to the pin member 12.

As shown in FIGS. 1 and 2, a sound guide member 23 for guiding the sound generated from the speaker 8 to the sound emitting portion 21 is arranged between the sound emitting portion 21 and the speaker 8. . The sound guide member 23 is made of an elastic material having an insulating property, such as rubber, is formed in a rectangular tube shape with a middle portion bent, one end thereof is attached to a part of the speaker 8, and the other end thereof is a sound emitting portion. It has a structure in which a substantially L-shaped elastic member 24 is integrally formed on one side of the elastic member 24. The elastic member 24 is made of the same elastic material as that of the sound guide member 23 and is stored in the strap fitting. The structure is such that it is arranged inside the portion 22 and surrounds the outer circumference of the stored strap metal fitting 10 substantially in three directions, and one side of the elastic member 24 has a strap accommodated in the strap metal fitting storage portion 22. Metal fittings 10
A holding portion (locking portion) 25 that holds the lever in a detachable manner is integrally formed.

In such a strap metal fitting 10 mounting structure, an elastic member 24 having an insulating property, such as rubber, is disposed in the strap metal fitting housing portion 22 of the equipment case 1, and the strap metal fitting accommodated by the elastic member 24. 10
Since it is designed to enclose the space between the upper case 2 and the lower case 3 in the conventional strap metal fitting housing 22,
The elastic member 24 can reliably prevent static electricity from entering the equipment case 1 even if the strap metal fitting 10 is charged with static electricity. As a result, the static electricity inside the equipment case 1 is prevented. It is possible to prevent the destruction of electronic components.

Further, in the structure for mounting the strap fitting 10, the elastic member 24 made of rubber or the like surrounds the strap fitting 10 housed in the strap fitting housing portion 22, so that the pin member 12 can be held when carrying the strap fitting. Even if the strap fitting 10 freely rotates around the center, the strap fitting 10 does not directly contact the device case 1 but contacts the elastic member 24, so that no abnormal noise is generated. In particular, the elastic member 24 is provided on one surface thereof with the holding portion 25 for holding the strap fitting 10 housed in the strap fitting housing 22 so that the strap fitting 10 can be detachably held. When the clip 14 is not attached, the strap fitting 10 can be fixed by holding the strap fitting 10 in the gripping portion 25 and storing it in the strap fitting storage portion 22, which is one of the functions of the pager. When the reception of the ringing signal is notified by vibration, the strap metal fitting 10 does not vibrate due to the vibration, so that a chattering noise is not generated.

Further, in this strap metal fitting 10 mounting structure, since the elastic member 24 is formed integrally with the sound guiding member 23 for guiding the sound generated from the speaker 8 to the outside, the number of parts does not increase, and the speaker is not used. Since the elastic member 24 can be installed in the strap metal fitting housing portion 22 at the same time when the sound guide member 23 is arranged between the sound guide portion 8 and the sound emitting portion 21, the assembling workability is extremely good. In particular, since the elastic member 24 is made of the same material as that of the sound guide member 23, injection molding with a mold is easy.

In the above embodiment, the elastic member 24 is formed so as to surround the strap fitting 10 housed in the strap fitting housing 22 in the three-face direction on the outer circumference.
Not limited to this, the elastic member 24 may be formed so as to surround the outer periphery of the strap fitting 10 and the five-face direction of the upper and lower surfaces. In this way, static electricity can be reliably prevented from entering from the strap fitting 10. Further, in the above-described embodiment, the case where the invention is applied to the pager has been described, but the invention is not limited to this, but can be widely applied to small electronic devices such as a pocket radio, a mobile phone, a portable cassette tape recorder, and an electronic camera.

[0012]

As described above, according to the present invention, in the strap metal fitting housing portion on the outer surface of the equipment case,
Since the elastic member with insulation that surrounds the strap fitting stored inside is arranged, even if the strap fitting is charged with static electricity, the elastic member can prevent static electricity from entering the equipment case. By this, it is possible to prevent the electronic parts in the device case from being destroyed by static electricity, and since the elastic member is formed so as to surround the strap metal fitting stored in the strap metal fitting storage portion,
Even if the strap fitting freely rotates around the pin member while being carried, the strap fitting does not directly contact the device case, but contacts the elastic member, so that abnormal noise can be prevented from occurring. Is integrally formed with the sound guide member that guides the sound generated from the speaker to the outside, so that the increase in the number of parts can be prevented.

[Brief description of drawings]

FIG. 1 is a lateral cross-sectional view of a main part of an embodiment in which the present invention is applied to a pager.

FIG. 2 is a sectional view taken along line AA of FIG.

3 is a sectional view taken along line BB of FIG.

FIG. 4 is a perspective view of the sound guide member of FIG.

FIG. 5 is a side view of an essential part in which a conventional strap fitting mounting structure is applied to a pager.

6 is a cross-sectional view of a main part of the pager of FIG.

[Explanation of symbols]

 1 Equipment Case 8 Speaker 10 Strap Fitting 12 Pin Member 22 Strap Fitting Storage 23 Sound Guiding Member 24 Elastic Member 25 Holding Part

Claims (3)

[Claims] 1. A device case provided with a speaker and a sound guide member for guiding a sound generated from the speaker to the outside, and a strap metal fitting storing portion is provided on an outer surface of the device case. In a mounting structure of a strap metal fitting in a small electronic device in which a strap metal fitting is rotatably mounted in a portion by a pin member, and the strap metal fitting is retractably housed in the strap metal housing housing, The strap metal fitting storage portion is provided on the outer surface of the device case, and the sound guide member is integrally formed with an elastic member that is disposed in the strap metal fitting storage portion and that surrounds the stored strap metal fitting. Attachment structure for strap metal fittings in small electronic devices. 2. The elastic member is integrally formed with a locking portion that locks the strap fitting detachably when the strap fitting is stored in the strap fitting storage portion. The structure for mounting a strap fitting in a small electronic device according to claim 1. 3. The sound guide member is made of the same material as the elastic member.
Attachment structure of the strap metal fitting in the described small electronic device.